Yesterday upon looking at my 20gallon tank I noticed that almost all of my female guppies had clamped fins. I recently introduced 2 male guppies, a white cloud, and a ghost shrimp (all of which I am "babysitting"- the owners had them in a tiny 1 gallon tank and I didn't want them in that small tank for a month- I didn't have another guppy-friendly cycled tank for them to go to...). And yes, I know that white clouds are supposed to be in groups and that I shouldn't introduce new fish without quarantine, but hopefully this will be a one time thing. I already had about 20 female guppies, 1 male guppy, and a lot of fry and planorbid snails in there. And yes, again, I know I am overstocked

. Right now I am working on a 28 gallon hex tank to split them up and hopefully a few 10 gallons for the fry. I also plan to move the fish I am looking after into their own tank, but I really want my tanks to cycle properly before I just throw fish in them. Please don't bash me for my known mistakes- I've already bashed myself

... I
am working on improvements. I have added salt, MelaFix, and PimaFix. Is there anything else that I should do? I have been keeping guppies for at least 5 years, if not longer, but I will admit that I am not too knowledgeable in the illness area. Thanks ahead!
rarefish